Too funny WD...
I think he actually tries too hard in the bigger, tougher games and puts so much pressure on himself that he makes bad decisions and forces the ball trying to ALWAYS make a play.
He needs to chill and realize the defense wins plays many times in the course of a game. Like CMR said to him, do your reads and if it's not there either throw it away or run with it to pick up what yards you can.
In the big games, the trainers need to slip a little valium in his Power Aid.